Add a "Merge LAS" tool to the 3D Analyst Point Cloud toolset so that users can merge two or more LAS files into a single LAS file. Currently, this functionality is restricted to using the Tile LAS tool on a LASD with a tile width and tile height covering the extent of the LASD. Since the short description of the Tile LAS tool is "Creates a set of nonoverlapping LAS files whose horizontal extents are divided by a regular grid." that is not an intuitive additional function for the tool. It would be more useful to create an independent tool for merge operations that automatically finds the minimum bounding box for a LASD or series of LAS files and generates a single LAS. This would also be more useful from a scripting perspective or when using model builder to help automate data processing.
This is an operation often needed when doing LiDAR processing from drone flights since the entirety of a project area can not always be scanned in a single flight due to battery or time limitations.
